Bottle closure



Sept. 19, 1950 M. E. DEGROFF BOTTLE CLOSURE Filed June 21, 1948 \&

INVENTOR.

Patented Sept. 19, 1950 UNITED STATES PATENT OFFICE BOTTLE CLOSURE Mark E. De Grofi, Chicago, Ill.

Application June 21, 1948, Serial No. 34,313

8 Claims. (Cl. 215-38) This invention pertains to a bottle closure. More specifically, it refers to that type of closures that contain medicinal ingredients that can be dispensed in minute quantities. Furthermore. it is directed specifically to a closure which contains a chamber suitable for convenient storage and dispensing of liquids. When the said chamher is empty it can be readily replaced by another which becomes a component of the closure and again functions as a bottle closure.

It therefore is an object of my invention to provide an improved bottle closure with a replaceable liquid chamber forming a part thereof.

A further object of my invention is to provide an effective bottle closure that not only will seal the contents of bottle but will also hermetically retain any liquid that must be dispensed in drop like quantities.

A still further object of my invention is to provide an improved bottle closure containing as its integral component a device for feeding liquids in minute quantities.

A still further and additional object of my invention is to provide an improved closure combining effectively the features of a dropper and still serving as a closure, and which is easy to re place when its contents have been dispensed.

These and other objects, uses, adaptations, variations, modifications and extensions will become immediately obvious to one skilled in this art particularly in light of the clear, lucid and accurate description given hereinbelow of the fundamental concepts underlying the principles of my invention and especially in light of the attached drawing illustrating the preferred embodiment of my invention. It is intended that all such objects, adaptations and modifications shall be clearly and unequivocally considered to be Within the scope of the spirit of invention as described hereinbelow and claimed in the hereunto appended claims.

Therefore, Figure 1 shows the improved bottle closur in position on a bottle.

Figure 2 shows an enlarged vertical cross sectional view of my improved closure mounted on a container, while Figure 3 shows a vertical cross sectional view of my improved closure mounted on a bottle while it is in use.

As a matter of convenience, I employ similar character references in the illustration as well as in this disclosure, to refer to elements of the various components forming my invention.

Essentially, my improved closure consists of a body In, which is preferably tubular though quite obviously it can have any other cross sectional shape. Though it can be made of any metal, I prefer to employ one of the several well known plastics, such as phenol-aldehydes, alkyds, cellulose acetate, nitrocellulose, etc. as the material from which the closure body can be formed. Internal threads l2 are formed within the interior vertical wall I4 of the body [0, which engage the threads IS on the bottle I8.

The top 20 of body [0 contains a centrally located aperture or opening 22 thru which fits the closure chamber 24. The opening 22 rests on an annular shoulder 26 forming an integral part of the chamber wall 24. A bead like annular rim 28 also forming an integral part of the chamber wall 24 forms an annular recess 30. This recess 30 receives the thickness of the top 20 of the: body l0 and snugly engages the same to become in combination with said top, a tightly fitting closure.

The base 32 of said chamber 24 rests snugly on the lip 34 of the bottle I8 and forms a tight seal when the cap I0 is tightly engaged by the threads l2.

The chamber 24 contains a hollow space 35. A pin point 36 is forced thru the apex 38 of the chamber wall into the interior 35 to form a very small hole 39 therein. The ball 4|] on. the pin point 36 is not only ornamental and also useful since it aids in forcing the point 36 into the space 35 when it is desired to stopper any fluid 42 that may be placed in the space 35. It is obvious that other types of pin stoppers may also be used and still be within the scope of the spirit of this invention.

The chamber 24 is utilized for dispensing liquids 42, such as skin softeners, soap, wetting agents, perfumes, etc. that must be dispensed in small drop like quantities. The liquid 42 to be dispensed is obtained in drop like form by either shaking the container or by slight pressure on the chamber walls 24. The chamber is made of any flexible material like rubber, cellulose acetate, etc. When the chamber 24 is empty, a new chamber can be very readily replaced. Sometimes it is desirable to exchange the chamber 24 with others that may contain different liquids.

The bottle itself l8 may contain any diluent liquid 44 such as water, alcohol, oil, etc. that can be used with the concentrated liquid 42.

Essentially this invention comprises a closure with a replaceable chamber which not only serves as a stopper to the liquid in the large container, but also serves itself as small vial that is capable of dispensing liquids in drop like manner.

Though the above embodiment of my invention is described and illustrated in its preferred embodiment, it is not my intention to be limited to the same for obviously it can be Widely Varied and still come within the purview and ambit of the fundamental concepts underlying the principles of my invention as defined in the hereunto defined claims.

I claim:

1. An improved closure comprising a cap means to engage the neck of a bottle, an aperture through said cap means, a resilient elliptical closed container nested in said aperture, a base on said container, an external annular U- shaped collar about the said base, the said collar in engaging juxtaposition with the edge of said cap means, and a flared resilient extension on said base of said container in contacting relationship with the neck of said bottle whereby the contents of said bottle are sealed.

2. In the closure of claim 1 wherein the said container has a small aperture in its apex.

3. In the closure of claim 1 wherein the said collar comprises two outstanding flanges of greater diameter than the aperture in the said cap means, the groove of said collar having a width less than the thickness of said cap means.

4. An improved bottle closure and container comprising an elastic walled container, said container having a base thereon to fit snugly against the opening of a bottle, the said base forming integrally an annular rim slightly larger than the open mouth of said bottle, an annular recess above said base annular rim of a diameter to fit the opening in the cap, a cap means bead form ing an integral part of said container above said opening in the cap and in contacting juxtaposition therewith, an opening in the apex of said container whereby liquids contained in said container can be dispensed dropwise, and a means on said cap means to engage the neck of said bottle.

5. The container of claim 4, wherein it is made of rubber.

, 6. In the closure of claim 4, an aperture in the apex of said container.

'7. The container of the closure of claim 4 wherein the said aperture in the apex of said container is sealed with a sealing means.

8. The sealing means of claim 7 being a ball covered pin.

MARK E. DE GROFF.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 2,093,730 Kurkjian Sept. 21, 1937 2,143,661 Schrader Jan. 10, 1939 2,219,604 Trotter Oct. 29, 1940 2,316,516 Hammerstein Apr. 13, 1943 

